After surviving the events of the Day of Mourning, the heroes spent their time in Sharn, trying to take stock of what happened.
Eventually, craving excitement, they started looking for work. They heard of an expedition to Xendrik, being led by Allen d’Cannith, a mutual friend of the heroes. They followed him to the tropical continent and spent many months exploring Titan ruins, looking for lost and forgotten artifacts.
The expedition was a success and Allen returned to Sharn a hero; the true nature of what he had found in Xendrik was not divuldged to anyone in his expedition.
Now, a few days after their return, Allen invites his old crew to a fancy nightclub in order to commemorate their success and sing songs of the “good old days”
...Perhaps then the heroes will find out what it was he found burried?